Allow passing an argument to the crash hunt script

utils/debug/crash_hunt.sh

@@ -1,9 +1,11 @@
 #!/bin/bash
 
 # A debug script that will run the test suite repeatedly, looking for
-# crashes. Takes the number of attempts as $1 (default 10).
+# crashes. Takes the number of attempts as $1 (default 10). Any further
+# arguments are forwarded to pytest, e.g. --run-long.
 
 COUNT=${1:-10}
+shift || true
 
 mkdir -p ./debug
 LOGDIR=./debug
@@ -15,7 +17,7 @@ while [ $i -lt "$COUNT" ]; do
     -ex "handle SIGSEGV stop nopass" \
     -ex "handle SIGABRT stop nopass" \
     -ex run -ex "bt full" -ex quit \
-    --args .venv/bin/python -m pytest tests -q \
+    --args .venv/bin/python -m pytest tests -q "$@" \
     > "$LOGDIR/crash_hunt_run_$i.log" 2>&1
   if grep -qE "SIGSEGV|SIGABRT|Segmentation fault" "$LOGDIR/crash_hunt_run_$i.log"; then
     echo ">>> CRASH on attempt $i — see $LOGDIR/crash_hunt_run_$i.log <<<"